#include <iostream>
#include <cmath>
#include<bits/stdc++.h>
using namespace std;
int main(){
		int n,a[4];

	cin>>n;
while(n!=6174){
		a[0]=n/1000;
		a[1]=n/100%10;
		a[2]=n/10%10;
		a[3]=n%10;
		sort(a,a+4);
		int n1=a[0]*1000+a[1]*100+a[2]*10+a[3];
		int n2=a[3]*1000+a[2]*100+a[1]*10+a[0];
		n=n2-n1;
		cout<<n2<<"-"<<n1<<"="<<n<<endl;
		
		}
return 0;
}
